HT Games
Swap Current Ball
Your currently loaded ball isn't always the one you want. If you have a green ball in your cannon and no visible pair of green balls to shoot at, you can end up making your situation worse. Click the right mouse button to change the ball currently loaded with the next one in the line. Use this technique to gain more control over the balls you shoot at the game board. Learn to use this hint to get yourself out of a bad situation.
Bonus Balls
Look for a glowing ball on the main game screen. Glowing balls contain bonuses, and blowing them up is the way to get the bonuses for yourself. Setting off the chain reaction or completing the chain makes the bonus ball explode. Use a ball of any color to set off the chain reaction, but be careful when aiming, otherwise you can insert an unrelated ball into the middle of a chain. This will ultimately make your job more difficult.
Falling Valuables
The world of "Sky Kingdoms" is replete with falling gems and coins. Collect as many of these falling gems and coins as possible during the course of the level. Use the coins and gems to purchase upgrades to your bonus powers and more lives to use on the game. The upgrades that can be purchased through collecting coins can increase your cannon's destructive power and give you even more upgrades to your bonus items. Keep an eye out for falling objects.
Combos
Pop the marbles on "Sky Kingdoms" in groups of three. Set yourself up for future combos before popping trios of marbles where possible. Check to ensure you have plenty of time to clear the level before starting. If you have a red ball in your cannon, instead of aiming for a group of two or three other red balls, shoot the ball next to a solitary red ball. This will set up a trio for later on in the level. Eventually, you will have a board full of grouped up balls which can be easily popped for better combos and therefore bonuses.